Years of Authority is the concluding volume in Robert Peel's monumental biography of the Founder of Christian Science. The last years of Mary Baker Eddy's life (1892-1910) included the triumph of Christian Science over some of the harshest criticism and severest crises that the new religious movement had encountered. In those years Mrs. Eddy formed The Mother Church in Boston, saw her movement spread to Europe and around the world, wrestled with the problem of spiritual authority in an increasingly secular society, and in her 88th year founded The Christian Science Monitor. The closing years of Mrs. Eddy's life are fascinating, and round out Robert Peel's brilliantly detailed portrait of a great religious leader. In addition, this volume examines in new perspective the nature of Christian authority in an age of science. This is the third of three books published in 1966 to commemorate the 100 years since Mary Baker Eddy discovered Christian Science. None of the volumes assume readers' familiarity with the subject, so each can be read individually or as part of the series.